Pot type oil burner and air distributing means therefor



March 7, 1950 x R; .A. HELLER POT TYPE OIL BURNER AND AIR DISTRIBUTING MEANS THEREFoR Filed Dec. 15, 1947 I V v INVENTOR. fiflZPfl/Z HELLER ATTORNEYS Patented Mar. 7, 1950 POT TYPE OIL BURNER AND AIR DIS- TRIBUTING MEANS THEREFOR Ralph A. Heller, Everett, Wash.

Application December 15, 1947, Serial No. 791,889

1 Claim. 1

This invention relates to a pot type oil burner, which is designed to be used in stoves and furnaces as a means for producing heat.

An object of the invention is to provide a pot type oil burner having a main or outer cylindrical body which is devoid of air inlet holes, and mounted in the outer cylindrical body an inner cylindrical body forming an air chamber which will supply suiiicient air for the proper combustion of the fuel in the burner.

With the above and other objects that will appear as the description of the invention proceeds, the invention consists of the novel details of construction, arrangement and combination of parts more fully hereinafter described, claimed and illustrated in the accompanying drawing in which:

Figure 1 is a top plan view of an emobdiment of the invention and Figure 2 is a vertical sectional view on the line 22 of Figure 1.

Referring more in detail to the drawing, the burner embodying the invention will be generally designated by the reference character If]. The body of the burner It comprises an outer cylindrical body I! which may be of any size desired to meet the capacity requirements. At the lower circumferential edge of the outer cylindrical body I i, a bottom plate i2 is welded thereto, along its peripheral edge.

Welded to the upper circumferential edge of the outer cylindrical body II is a ring-shaped flange is, which is welded to the outer cylindrical body at its outer peripheral edge, and is welded at its inner peripheral edge to an inner cylindrical body M. The upper circumferential edge of the inner cylindrical body it has an inturned curved flange l5 forming the central opening it. Welded to the lower circumferential edge of the inner cylindrical body l4 along its peripheral edge is the bottom plate ll.

The center of the plate I! is provided with a central opening I3, and welded to the plate H. on the upper surface thereof, in perfect com munication with the opening 18 is the pipe member l9.

Mounted on the pipe member l9, is a sleeve member 23, which enters the central opening '25 of the truncated conical shaped bottom member 22 of the circular shaped housing 2;; forming an air chamber 24 therewithin.

A. top plate 25 is welded to the upper edge of the housing 23, and the housing is provided with a plurality of circumferentially spaced rows of apertures 26. The apertures are relatively spaced with relation to each other, and provide air inlet means for the burner.

The outer cylindrical body I I is provided with an opening 21 adjacent its upper circumferential edge, and welded within the opening 2'! is the air pipe 28. A fan can be placed in front of the pipe 28 to force air into the pipe as desired.

In direct alinement with the opening 21 in the outer cylindrical body ll, there is provided a much smaller opening 29, in the inner cylindrical body l4. secured to the inner surface of the inner cylindrical body [4, covering the opening 29 and extending almost to the bottom of the outer cylindrical body H is a channel member 33 having a flared open end 3|.

A short fuel pipe 32 is passed through the opening 33 in the outer cylindrical body H, and welded to the cylinder at this point. The pipe 32 is cut away at 34 to communicate with the opening 35 in the bottom plate IT. The pipe, at this point, is welded to the bottom plate ll about the opening 35.

There has thus been provided an oil burner having an outer air chamber and an inner air chamber, a pipe connected to the outer air chamber for forcing air into the burner which, coming in at the top of the outer chamber, is preheated before it enters the inner air chamber, thus pro ducing a greater combustion efiiciency. A channel guides the incoming air toward the bottom of the air chamber, where it is forced upwardly into the inner air chamber. Thus the air is of a much higher temperature than would be avail able should the cylindrical bodies I! and I 4 be perforated as is the usual custom with burners of this type.

Fuel is fed to the burner by means of the pipe 32, and once ignited, the air forced into the outer air chamber through the pipe 28 will cause eflicient combustion of the fuel in the burner.

It is believed that the construction and operation of the burner will be apparent to those skilled in the art, and it is to be understood that changes in the minor details of construction, arrangement and combination of parts may be resorted to, provided they fall within the spirit of the invention and the scope of the appended claim.

Having thus described the invention, what is claimed as new and desired to be secured by Letters Patent is:

In an oil burner having an internal air distributing chamber the improvement comprising an inner cylindrical body having an open bottom and an internal circumferential flange on the top thereof providing a central opening therein,

a bottom plate for said inner body having a central opening therein, and secured at its peripheral edge to said inner body, an outer cylindrical body enclosing said inner body and forming an air chamber therebetween, a ring-shaped flange at the upper peripheral edge of said outer body securing said inner body to said outer body and spacing the two from each other, an air feed pipe atta'ched-to'the outer body immediatelybelow said ring-shapedfiange and communicating with the air chamber, an upwardly directed air conducting pipe secured to the bottom plate of said inner body about the openingztherein,a- 'sleeve on said pipe and resting on the bottomzplate on the lower periphery, an inverted perforated conical shaped bottom member securedto the upper end of said sleeve, a perforated"housinglon said bottom member having the upper end closed, a fuel feed line extending into and communicating 4 with the inner body through an opening in the bottom plate thereof, an air induction channel member within the inner body terminating short of the bottom thereof, slightly above the fuel feed inlet and an air inlet for said air induction channel member.

RALPH A. HELLER.

REFERENCES-1 CITED The 'following'referencesare of record in the file of this patent:

UNITED STATES PATENTS EgNumber Name Date 15 2,091,658 Sturgis Aug. 31, 1937 2,162,844 Jenson June 20, 1939 5 2,295,799 Focke'et al Sept. 15, 1942 2,309,319 Johnston Jan. 26, 1943 "2,355,416 Breese Aug. 8, 1944 

